load files

The following files can be loaded:

# Grid: SEAGRID file or ROMS history file
- press button [grid]
- when load a new grid, a new stations file (bellow) should also be loaded
- variables used are:
longitude, lon_rho or x_rho
latitude, lat_rho or y_rho
bathymetry, h

# Coastline: mat file with variables lon and lat
- use menu [SpectrHA] >> [overlay] >> [coastline]

# Stations: ROMS stations file or ROMS history file
- press button [station]
- variables used are:
longitude, lon_rho or x_rho
latitude, lon_rho or x_rho
bathymetry, h
time, ocean_time
ssh, zeta
velocity, u, v, ubar and vbar

# Data file: mat file with data to be analyses
- press button [file]
- variables needed:
serie, can be real or imaginary; imaginary part is interpreted as v-momentum
interval, interval in hours, default is 1h
lon and lat, just to show position on grid and maybe be used by T_TIDE; default is nan
start_time, start time of serie, as datenum; default is nan, otherwise it will be used by T_TIDE
- example:

>> interval=1;
>> t=0:interval:30*24;
>> serie=cos(2*pi*t/12)+0.5*cos(2*pi*t/12.4206-deg2rad(30));
>> lon=-10;
>> lat=40;
>> start_time=datenum(2001,12,19,18,0,0);
>> save example_1Dserie serie interval lon lat start_time
>>
>> % 2D serie:
>> v=0.7*cos(2*pi*t/12-deg2rad(45))+0.2*cos(2*pi*t/12.4206);
>> serie=serie+sqrt(-1)*v;
>> save example_2Dserie serie interval lon lat start_time

# Ellipse file: mat file with ellipse parameters
- press button [struc]
- variables needed:
major, minor, inc and pha, major axes, minor axes, inclination and phase of the ellipse
or, instead, use tidestruc, if you want to load several ellipses, directly from T_TIDE and LSF output
lon and lat, just to show position on grid, this way you can select a near station and compare...; default is nan
color, colors to be used drawing the ellipses
if it is not present, or they are less than the ellipses being loaded, a default color (see configuration) is used
color is a matrix of the kind [r g b; r g b; ...]
- example:

>> major=1;
>> minor=0.4;
>> inc=10;
>> pha=30;
>> lon=-9;
>> lat=41;
>> color=[1 0 0];
>> save example_ellipse major minor inc pha lon lat color
>>
>> % tidestruc:
>> major=[1 0.7 0.2];
>> minor=[0.4 0.2 0.1];
>> inc=[10 70 120];
>> pha=[30 0 90];
>> lon=-10;
>> lat=41;
>> color=[1 0 0; 0 0 1; 0 0 0];
>> err=zeros(size(major));
>> tidecon=[major' err' minor' err'  inc' err'  pha' err'];
>> tidestruc.tidecon=tidecon;
>> save example_tidestruc tidestruc lon lat color


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